US12272258B2ActiveUtilityA1

Unmanned vehicle recognition and threat management

96
Assignee: DIGITAL GLOBAL SYSTEMS INCPriority: Jan 23, 2017Filed: Nov 19, 2024Granted: Apr 8, 2025
Est. expiryJan 23, 2037(~10.5 yrs left)· nominal 20-yr term from priority
G01S 3/46G01S 3/043G01S 5/0284G01S 5/04G08G 5/57G08G 5/55G06N 7/01G06N 3/08G01S 3/046G08G 5/22H04N 23/60H04N 7/181G08B 29/185G08B 25/10G08B 25/08G08B 5/36G06T 2207/30212G06T 2207/20056G06T 7/73G01S 5/12G01S 5/02585G01S 5/0221
96
PatentIndex Score
2
Cited by
835
References
20
Claims

Abstract

Systems and methods for automated unmanned aerial vehicle recognition. A multiplicity of receivers captures RF data and transmits the RF data to at least one node device. The at least one node device comprises a signal processing engine, a detection engine, a classification engine, and a direction finding engine. The at least one node device is configured with an artificial intelligence algorithm. The detection engine and classification engine are trained to detect and classify signals from unmanned vehicles and their controllers based on processed data from the signal processing engine. The direction finding engine is operable to provide lines of bearing for detected unmanned vehicles.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. An apparatus for signal identification in a radiofrequency (RF) environment, comprising:
 at least one node device including a processor and at least one memory; 
 wherein the at least one node device is operable to determine Fast Fourier Transform (FFT) data derived from RF data from the RF environment; 
 wherein the at least one node device is operable to average the FFT data into at least one tile; 
 wherein the at least one tile is visually represented as at least one waterfall image; and 
 wherein the at least one node device is operable to analyze the at least one waterfall image using machine learning (ML) or at least one convolutional neural network (CNN) to identify at least one signal, at least one signal type, and/or noise to create at least one analyzed waterfall image. 
 
     
     
       2. The apparatus of  claim 1 , wherein the at least one analyzed waterfall image includes a visual indication of the at least one signal, the at least one signal type, and/or the noise. 
     
     
       3. The apparatus of  claim 2 , wherein the visual indication of the at least one signal or the at least one signal type is indicated with highlighting on the at least one analyzed waterfall image. 
     
     
       4. The apparatus of  claim 1 , further comprising a display operable to display the at least one analyzed waterfall image. 
     
     
       5. The apparatus of  claim 1 , wherein the at least one signal type includes a drone signal type. 
     
     
       6. The apparatus of  claim 1 , wherein the analysis of the at least one waterfall image using the ML or the at least one CNN includes a comparison of the at least one waterfall image to at least one other waterfall image. 
     
     
       7. The apparatus of  claim 6 , wherein the at least one node device is operable to update a database including the at least one other waterfall image with the at least one waterfall image and/or the at least one analyzed waterfall image. 
     
     
       8. The apparatus of  claim 1 , wherein the at least one node device is operable to transmit an alert related to the at least one signal or the at least one signal type. 
     
     
       9. The apparatus of  claim 1 , wherein the at least one node device is in communication with at least one RF receiver operable to capture the RF data and/or transform the RF data into the FFT data. 
     
     
       10. An apparatus for signal identification in a radiofrequency (RF) environment, comprising:
 a node device including a processor and at least one memory; 
 wherein the node device is operable to determine Fast Fourier Transform (FFT) data derived from RF data in the RF environment; 
 wherein the node device is operable to average the FFT data into at least one tile; 
 wherein the at least one tile is represented as at least one image; and 
 wherein the image is analyzed using machine learning (ML) or at least one convolutional neural network (CNN) to identify at least one signal, at least one signal type, and/or noise to create at least one analyzed image. 
 
     
     
       11. The apparatus of  claim 10 , wherein the at least one analyzed image includes a visual indication of the at least one signal, the at least one signal type, and/or the noise. 
     
     
       12. The apparatus of  claim 10 , further comprising a display operable to display the at least one analyzed image. 
     
     
       13. The apparatus of  claim 10 , wherein the node device is operable to estimate a geographic location for at least one signal emitting device of the at least one signal. 
     
     
       14. The apparatus of  claim 10 , wherein the analysis of the at least one image using the ML or the at least one CNN includes a comparison of the at least one image to at least one other image. 
     
     
       15. The apparatus of  claim 14 , wherein the node device is operable to update a database including the at least one other image with the at least one analyzed image. 
     
     
       16. A method for signal analysis in a radiofrequency (RF) environment, comprising:
 at least one node device converting RF data in the RF environment to Fast Fourier Transform (FFT) data; 
 the at least one node device averaging the FFT data into at least one tile, wherein the at least one tile is represented as at least one waterfall image; and 
 the at least one node device analyzing the at least one waterfall image using machine learning (ML) or at least one convolutional neural network (CNN) to identify at least one signal, at least one signal type, and/or noise. 
 
     
     
       17. The method of  claim 16 , further comprising the at least one node device creating at least one analyzed waterfall image based on the identification of the at least one signal, the at least one signal type, and/or the noise, wherein the at least one analyzed waterfall image includes a visual indication of the at least one signal, the at least one signal type, and/or the noise. 
     
     
       18. The method of  claim 16 , further comprising estimating a geographic location for at least one signal emitting device of the at least one signal. 
     
     
       19. The method of  claim 16 , wherein the at least one node device analyzing the at least one waterfall image using the ML or the at least one CNN to identify the at least one signal, the at least one signal type, and/or the noise includes comparing the at least one waterfall image to at least one other waterfall image. 
     
     
       20. The method of  claim 19 , further comprising updating a database including the at least one other waterfall image with the at least one analyzed waterfall image.

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